scholarly journals Effects of Hydroelectric Dam Operations on the Restoration Potential of Snake River Fall Chinook Salmon (Oncorhynchus tshawytscha) Spawning Habitat Final Report, October 2005 - September 2007.

2007 ◽  
Author(s):  
Timothy P. Hanrahan ◽  
Marshall C. Richmond ◽  
Evan V. Arntzen
Keyword(s):  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Snake River ◽  
Final Report ◽  
Spawning Habitat ◽  
Hydroelectric Dam ◽  
Restoration Potential

scholarly journals Spawning Habitat Studies of Hanford Reach Fall Chinook Salmon (Oncorhynchus tshawytscha), Final Report.

2009 ◽  
Author(s):  
David R. Geist ◽  
Evan V. Arntzen ◽  
Yi-Ju Chien
Keyword(s):  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Final Report ◽  
Spawning Habitat ◽  
Hanford Reach

Spawning Habitat Used by Fall Chinook Salmon in the Snake River

1999 ◽  
Vol 19 (4) ◽  
pp. 912-922 ◽  
Author(s):  
Phillip A. Groves ◽  
James A. Chandler
Keyword(s):  
Chinook Salmon ◽  
Snake River ◽  
Spawning Habitat

Forecasting climate-induced changes in the survival of Snake River spring/summer Chinook salmon (Oncorhynchus tshawytscha)

2005 ◽  
Vol 14 (6) ◽  
pp. 448-457 ◽  
Author(s):  
MARK D. SCHEUERELL ◽  
JOHN G. WILLIAMS
Keyword(s):  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Snake River ◽  
Induced Changes

Relationship between chinook salmon (Oncorhynchus tshawytscha) redd densities and PHABSIM-predicted habitat in the Merced and Lower American rivers, California

1999 ◽  
Vol 56 (4) ◽  
pp. 570-577 ◽  
Author(s):  
Sean P Gallagher ◽  
Mark F Gard
Keyword(s):  
Fisheries Management ◽  
Chinook Salmon ◽  
Significant Relationship ◽  
Oncorhynchus Tshawytscha ◽  
Simulation System ◽  
Physical Habitat ◽  
Instream Flow ◽  
Spawning Habitat ◽  
Habitat Simulation

An index of chinook salmon (Oncorhynchus tshawytscha) spawning habitat predicted using the physical habitat simulation system (PHABSIM) component of the instream flow incremental methodology was compared with redd densities and locations for sites in the Merced River, California, during 1996 and with redd numbers in sites in the Merced and Lower American rivers, California, from 1989 through 1996. Predicted weighted useable area (WUA) was significantly correlated with chinook salmon spawning density and location at five of seven sites in the Merced River. At the microhabitat level, in the Merced River during 1996, there was a significant relationship between chinook salmon redd location and predicted WUA. Cells with more WUA in the Merced River tended to have more redds. At the mesohabitat level, there was a significant relationship between redd density and predicted WUA in both rivers. Transect areas in the Merced River with higher predicted WUA had more redds. Sites with higher numbers of redds had more predicted WUA. Significant correlations between predicted WUA and spawning locations increase confidence in the use of PHABSIM modeling results for fisheries management in the Merced and Lower American rivers as well as in other rivers.

A multiple-reach model describing the migratory behavior of Snake River yearling chinook salmon (Oncorhynchus tshawytscha)

1998 ◽  
Vol 55 (3) ◽  
pp. 658-667 ◽  
Author(s):  
Richard W Zabel ◽  
James J Anderson ◽  
Pamela A Shaw
Keyword(s):  
Chinook Salmon ◽  
Migration Rate ◽  
River Flow ◽  
Oncorhynchus Tshawytscha ◽  
Nonlinear Models ◽  
Columbia River ◽  
River System ◽  
Snake River ◽  
Migration Route ◽  
Time Step

A multiple-reach model was developed to describe the downstream migration of juvenile salmonids in the Columbia River system. Migration rate for cohorts of fish was allowed to vary by reach and time step. A nested sequence of linear and nonlinear models related the variation in migration rates to river flow, date in season, and experience in the river. By comparing predicted with observed travel times at multiple observation sites along the migration route, the relative performance of the migration rate models was assessed. The analysis was applied to cohorts of yearling chinook salmon (Oncorhynchus tshawytscha) captured at the Snake River Trap near Lewiston, Idaho, and fitted with passive integrated transponder (PIT) tags over the 8-year period 1989-1996. The fish were observed at Lower Granite and Little Goose dams on the Snake River and McNary Dam on the Columbia River covering a migration distance of 277 km. The data supported a model containing two behavioral components: a flow term related to season where fish spend more time in regions of higher river velocity later in the season and a flow-independent experience effect where the fish migrate faster the longer they have been in the river.

Fall Chinook Salmon (Oncorhynchus tshawytscha), Sand Roller (Percopsis transmontana), and Smallmouth Bass (Micropterus dolomieu) Interactions in a Snake River Reservoir: A Tale of Three Species

2019 ◽  
Vol 100 (1) ◽  
pp. 26 ◽  
Author(s):  
Rulon J Hemingway ◽  
Kenneth F Tiffan ◽  
John M Erhardt ◽  
Tobyn N Rhodes ◽  
Brad K Bickford
Keyword(s):  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Smallmouth Bass ◽  
Snake River ◽  
Micropterus Dolomieu ◽  
River Reservoir
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